./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_b3_o5-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5790d2-4cff-44de-b950-a625db26ecb8/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5790d2-4cff-44de-b950-a625db26ecb8/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5790d2-4cff-44de-b950-a625db26ecb8/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5790d2-4cff-44de-b950-a625db26ecb8/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b3_o5-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5790d2-4cff-44de-b950-a625db26ecb8/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5790d2-4cff-44de-b950-a625db26ecb8/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 621898048ba1a114e9dcad9e5710c657610f8003e8ee1fe56040431e90585894 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:00:19,425 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:00:19,511 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5790d2-4cff-44de-b950-a625db26ecb8/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 04:00:19,518 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:00:19,519 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:00:19,550 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:00:19,551 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:00:19,552 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:00:19,553 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:00:19,554 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:00:19,555 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:00:19,556 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:00:19,556 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:00:19,557 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:00:19,557 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:00:19,558 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:00:19,559 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:00:19,559 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:00:19,560 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:00:19,560 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:00:19,561 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:00:19,562 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:00:19,562 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:00:19,563 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:00:19,563 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:00:19,564 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:00:19,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:00:19,565 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:00:19,565 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:00:19,566 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:00:19,566 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:00:19,567 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:00:19,567 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:00:19,568 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5790d2-4cff-44de-b950-a625db26ecb8/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5790d2-4cff-44de-b950-a625db26ecb8/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 621898048ba1a114e9dcad9e5710c657610f8003e8ee1fe56040431e90585894 [2023-11-19 04:00:19,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:00:19,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:00:19,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:00:19,878 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:00:19,879 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:00:19,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5790d2-4cff-44de-b950-a625db26ecb8/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/recursive-simple/id_b3_o5-2.c [2023-11-19 04:00:23,109 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:00:23,404 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:00:23,404 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5790d2-4cff-44de-b950-a625db26ecb8/sv-benchmarks/c/recursive-simple/id_b3_o5-2.c [2023-11-19 04:00:23,413 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5790d2-4cff-44de-b950-a625db26ecb8/bin/ukojak-verify-G8NBE6pJGL/data/a2d34b09c/ee3637708ece4598b43ee11e13ff3bc7/FLAGde5213e46 [2023-11-19 04:00:23,434 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5790d2-4cff-44de-b950-a625db26ecb8/bin/ukojak-verify-G8NBE6pJGL/data/a2d34b09c/ee3637708ece4598b43ee11e13ff3bc7 [2023-11-19 04:00:23,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:00:23,440 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:00:23,442 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:00:23,443 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:00:23,448 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:00:23,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:00:23" (1/1) ... [2023-11-19 04:00:23,451 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ba6485c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:23, skipping insertion in model container [2023-11-19 04:00:23,451 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:00:23" (1/1) ... [2023-11-19 04:00:23,474 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:00:23,673 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5790d2-4cff-44de-b950-a625db26ecb8/sv-benchmarks/c/recursive-simple/id_b3_o5-2.c[528,541] [2023-11-19 04:00:23,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:00:23,696 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:00:23,718 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5790d2-4cff-44de-b950-a625db26ecb8/sv-benchmarks/c/recursive-simple/id_b3_o5-2.c[528,541] [2023-11-19 04:00:23,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:00:23,738 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:00:23,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:23 WrapperNode [2023-11-19 04:00:23,739 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:00:23,741 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:00:23,741 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:00:23,741 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:00:23,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:23" (1/1) ... [2023-11-19 04:00:23,763 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:23" (1/1) ... [2023-11-19 04:00:23,779 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-11-19 04:00:23,780 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:00:23,781 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:00:23,781 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:00:23,781 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:00:23,792 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:23" (1/1) ... [2023-11-19 04:00:23,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:23" (1/1) ... [2023-11-19 04:00:23,794 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:23" (1/1) ... [2023-11-19 04:00:23,795 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:23" (1/1) ... [2023-11-19 04:00:23,798 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:23" (1/1) ... [2023-11-19 04:00:23,800 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:23" (1/1) ... [2023-11-19 04:00:23,801 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:23" (1/1) ... [2023-11-19 04:00:23,803 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:23" (1/1) ... [2023-11-19 04:00:23,804 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:00:23,806 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:00:23,806 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:00:23,806 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:00:23,808 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:23" (1/1) ... [2023-11-19 04:00:23,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:00:23,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5790d2-4cff-44de-b950-a625db26ecb8/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:00:23,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5790d2-4cff-44de-b950-a625db26ecb8/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:00:23,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5790d2-4cff-44de-b950-a625db26ecb8/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:00:23,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:00:23,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:00:23,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:00:23,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:00:23,894 INFO L130 BoogieDeclarations]: Found specification of procedure id [2023-11-19 04:00:23,896 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2023-11-19 04:00:23,964 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:00:23,966 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:00:24,094 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:00:24,125 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:00:24,126 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:00:24,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:00:24 BoogieIcfgContainer [2023-11-19 04:00:24,131 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:00:24,132 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:00:24,132 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:00:24,144 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:00:24,145 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:00:24" (1/1) ... [2023-11-19 04:00:24,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:00:24,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:24,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-11-19 04:00:24,215 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-19 04:00:24,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 04:00:24,220 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:24,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:24,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:00:24,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:24,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2023-11-19 04:00:24,599 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-11-19 04:00:24,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 04:00:24,600 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:24,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:24,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:25,064 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 04:00:25,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:25,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2023-11-19 04:00:25,333 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2023-11-19 04:00:25,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 04:00:25,334 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:25,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:25,749 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 04:00:25,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:25,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2023-11-19 04:00:25,977 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2023-11-19 04:00:25,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 04:00:25,979 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:25,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:26,391 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 04:00:26,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:26,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2023-11-19 04:00:26,621 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2023-11-19 04:00:26,624 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:00:26,624 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2023-11-19 04:00:26,634 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 04:00:26,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:00:26 ImpRootNode [2023-11-19 04:00:26,725 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:00:26,726 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:00:26,726 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:00:26,727 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:00:26,727 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:00:24" (3/4) ... [2023-11-19 04:00:26,730 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:00:26,734 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2023-11-19 04:00:26,747 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-19 04:00:26,748 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 04:00:26,748 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 04:00:26,748 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:00:26,880 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5790d2-4cff-44de-b950-a625db26ecb8/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 04:00:26,880 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5790d2-4cff-44de-b950-a625db26ecb8/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 04:00:26,881 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:00:26,882 INFO L158 Benchmark]: Toolchain (without parser) took 3441.18ms. Allocated memory is still 184.5MB. Free memory was 148.1MB in the beginning and 141.9MB in the end (delta: 6.2MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2023-11-19 04:00:26,882 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 134.2MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:00:26,883 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.20ms. Allocated memory is still 184.5MB. Free memory was 147.6MB in the beginning and 137.6MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:00:26,883 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.32ms. Allocated memory is still 184.5MB. Free memory was 137.6MB in the beginning and 136.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:00:26,884 INFO L158 Benchmark]: Boogie Preprocessor took 24.01ms. Allocated memory is still 184.5MB. Free memory was 136.3MB in the beginning and 135.5MB in the end (delta: 803.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:00:26,884 INFO L158 Benchmark]: RCFGBuilder took 325.18ms. Allocated memory is still 184.5MB. Free memory was 135.5MB in the beginning and 124.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:00:26,885 INFO L158 Benchmark]: CodeCheck took 2593.40ms. Allocated memory is still 184.5MB. Free memory was 124.5MB in the beginning and 147.0MB in the end (delta: -22.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:00:26,888 INFO L158 Benchmark]: Witness Printer took 154.72ms. Allocated memory is still 184.5MB. Free memory was 147.0MB in the beginning and 141.9MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:00:26,894 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 84 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 152 IncrementalHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 52 mSDtfsCounter, 152 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 479 GetRequests, 436 SyntacticMatches, 7 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 142 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 24/48 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 17]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 134.2MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.20ms. Allocated memory is still 184.5MB. Free memory was 147.6MB in the beginning and 137.6MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.32ms. Allocated memory is still 184.5MB. Free memory was 137.6MB in the beginning and 136.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.01ms. Allocated memory is still 184.5MB. Free memory was 136.3MB in the beginning and 135.5MB in the end (delta: 803.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 325.18ms. Allocated memory is still 184.5MB. Free memory was 135.5MB in the beginning and 124.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 2593.40ms. Allocated memory is still 184.5MB. Free memory was 124.5MB in the beginning and 147.0MB in the end (delta: -22.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 154.72ms. Allocated memory is still 184.5MB. Free memory was 147.0MB in the beginning and 141.9MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 04:00:26,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5790d2-4cff-44de-b950-a625db26ecb8/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE